Experimental performance assessment of two-stage thermoelectric system in a closed-cycle drying process

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dc.authorid0000-0003-2601-303X
dc.authorid0000-0002-6492-251X
dc.contributor.authorOsta, Muhammet Harun
dc.contributor.authorYakut, Kenan
dc.contributor.authorKoksal, Huseyin
dc.date.accessioned2026-02-28T12:17:46Z
dc.date.available2026-02-28T12:17:46Z
dc.date.issued2025
dc.departmentBayburt Üniversitesi
dc.description.abstractTraditional drying systems suffer from several limitations, including high energy consumption, insufficient hygienic control, and the inability to maintain precise temperature regulation. Although alternative drying systems have been developed to address these issues, they often encounter practical challenges due to their complex structures and the need for numerous external components. To overcome these limitations, this study proposes and experimentally evaluates a novel, independently operating, two-stage thermoelectric module (TEM) system integrated into a closed-loop drying setup that eliminates the need for external heating and dehumidification components. The proposed system addresses the efficiency and hygiene problems observed in conventional dryers by simultaneously performing air heating, cooling, and dehumidification functions through compact thermoelectric devices. The drying process consists of two stages: the first involves air pre-conditioning (heating/ cooling), while the second is dedicated to dehumidification. The performance of the system has been evaluated based on key metrics such as cooling and heating capacities, the coefficients of performance (COP) for both stages, moisture removal rate (MRR), and moisture removal rate effectiveness (EffMRR). Experimental studies were conducted under input voltages ranging from 3 to 7 V, relative humidity levels between 60 % and 90 %, and varying airflow rates. Under 90 % relative humidity conditions and a 7 V input voltage, the system achieved a maximum moisture removal rate of 13.1 g/h. The first-stage TEM reached a heating capacity of 68.81 W and a cooling capacity of 26.34 W, while the second stage provided 21.17 W of cooling capacity.
dc.identifier.doi10.1016/j.applthermaleng.2025.127451
dc.identifier.issn1359-4311
dc.identifier.issn1873-5606
dc.identifier.scopus2-s2.0-105009694829
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.applthermaleng.2025.127451
dc.identifier.urihttps://hdl.handle.net/20.500.12403/5975
dc.identifier.volume278
dc.identifier.wosWOS:001530509800002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofApplied Thermal Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260218
dc.subjectThermoelectric dehumidifier
dc.subjectTwo-stage thermoelectric system
dc.subjectThermoelectric heat pump
dc.subjectClosed-loop drying
dc.subjectThermoelectric cooling
dc.titleExperimental performance assessment of two-stage thermoelectric system in a closed-cycle drying process
dc.typeArticle

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